diff --git a/.github/workflows/devnet-watcher.yml b/.github/workflows/devnet-watcher.yml
new file mode 100644
index 0000000..8eabfd0
--- /dev/null
+++ b/.github/workflows/devnet-watcher.yml
@@ -0,0 +1,69 @@
+name: Watcher - devnet
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  changed_files:
+    runs-on: ubuntu-latest
+    name: Get changed files
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: GCP Auth
+        id: auth
+        uses: google-github-actions/auth@v1
+        with:
+          credentials_json: ${{ secrets.DEV_GCP_CREDENTIALS }}
+
+      - name: Setup GCP SDK
+        id: setup-sdk
+        uses: google-github-actions/setup-gcloud@v1
+
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v44
+        with:
+          files: devnets/**
+          files_ignore: devnets/initia/**
+
+      - name: Get current time
+        uses: initia-labs/actions/get-current-time@main
+        id: current-time
+        with:
+          format: YYYY-MM-DDTHH-mm-ss
+
+      - name: Copy changed files to GCS
+        env:
+          ALL_ADDED_FILES: ${{ steps.changed-files.outputs.added_files }}
+          ALL_MODIFIED_FILES: ${{ steps.changed-files.outputs.modified_files }}
+          ALL_DELETED_FILES: ${{ steps.changed-files.outputs.deleted_files }}
+          CURRENT_TIME: ${{ steps.current-time.outputs.formattedTime }}
+
+        run: |
+          if [ -n "${ALL_ADDED_FILES}" ]; then
+            for add in ${ALL_ADDED_FILES}; do
+              echo "Copying $add to GCS..."
+              path=$(dirname "$add") 
+              gsutil -m cp "$add" gs://dev-initia-registry/v1/"$CURRENT_TIME"/added/"$path"/
+            done
+          fi
+
+          if [ -n "${ALL_MODIFIED_FILES}" ]; then
+            for mod in ${ALL_MODIFIED_FILES}; do
+              echo "Copying $mod to GCS..."
+              path=$(dirname "$mod") 
+              gsutil -m cp "$mod" gs://dev-initia-registry/v1/"$CURRENT_TIME"/modified/"$path"/
+            done
+          fi
+
+          if [ -n "${ALL_DELETED_FILES}" ]; then
+            touch deleted_files
+            for del in ${ALL_DELETED_FILES}; do
+              echo "Writing $del to file..."
+              echo "$del" >> deleted_files
+            done
+            gsutil -m cp deleted_files gs://dev-initia-registry/v1/"$CURRENT_TIME"/deleted/
+          fi
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